public class Plane {
    //高度、座位数
    String height,seats;

    public Plane(String height, String seats) {
        this.height = height;
        this.seats = seats;
    }

    //起飞、降落
    public void fly() {
        System.out.println("起飞");
    }

    public void landing() {
        System.out.println("降落");
    }
}